Running shell script with NSTask causes posix_spawn error

Question

I'm trying to run a shell script with NSTask with the following code:

NSTask *task = [[NSTask alloc] init];
[task setLaunchPath:@"/Users/username/connect.sh"];
[task launch];

But I get An uncaught exception was raised and Couldn't posix_spawn: error 8

If I just run the script in terminal, everything works.

Here is what the script contains:

if [ ! -d ~/Remote/username/projects  ] 
then  
        sshfs -C -p 22 user@remotecomputer.com:/home/username ~/Remote/username        
fi

SourceTree hits the same issue running NSTasks: https://superuser.com/questions/1437788/sourcetree-custom-actions-couldnt-posix-spawn-error-8 — pkamb, May 16 '19 at 20:25

score 9 · Answer 1 · answered Feb 01 '16 at 17:41

9

You can also add #!/bin/bash to the start of your script:

#!/bin/bash

if [ ! -d ~/Remote/username/projects  ] 
then  
    sshfs -C -p 22 user@remotecomputer.com:/home/username        ~/Remote/username        
fi

answered Feb 01 '16 at 17:41

Michael Colville

225
3
5

or on newer macOS Versions add #!/bin/zsh – Tom Jan 01 '23 at 00:29

score 3 · Accepted Answer · answered Aug 29 '14 at 00:39

3

You need to use setLaunchPath like this:

[task setLaunchPath:@"/bin/sh"];

Then use setArguments for your script:

[task setArguments: [NSArray arrayWithObjects: @"~/connect.sh", nil]];

answered Aug 29 '14 at 00:39

l'L'l

44,951
10
95
146

Running shell script with NSTask causes posix_spawn error

2 Answers2